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STRUCTURAL ENGINEERS <br />January 13,2014 <br />'kp.keHETH <br />' / No. $3878 <br />4· ·STRUCTUidh.17.k- <br />UniRac 8 4\mt1411 Broadway Boulevard NE & i <br />/Albuquerque, New Mexico 87102-1545 <br />TEL: (505) 242-6411 <br />FAX: (505) 242-6412 <br />Attn.: Engineering Department, <br />Re: Engineering Certification for UniRac's SolarMount Code-Compliant Installation Manual 227.3 <br />PZSE, Inc.-Structural Engineers has reviewed UniRac's "SolarMount Code-Compliant Installation Manual <br />227.3" published January 2014 and specifically "Part I. Procedure to Determine the Design Wind Load", and <br />"Part II: Procedure to Select Rail Span and Rail Type". <br />The procedures are used to determine the calculation ofthe design wind force, load combinations, applied <br />loading and rail selection. All information, data and analysis contained within the Installation Manual are based <br />on, and comply with the following: <br />1. Minimum Design Loads for Buildings and other Structures, ASCE/SEI 7-05 and ASCE/SEI 7-10 <br />2. 2012 International Building Code, by International Code Council, Inc. <br />3. 2013 California Building Code, by California Building Standards Commission <br />4. 2010 Aluminum Design Manual, by The Aluminum Association <br />This letter certifies that the structural calculations contained within UniRac's "SolarMount Code-Compliant <br />Installation Manual 227.3 are in compliance with the above Codes. <br />If you have any questions on the above, do not hesitate to call. <br />Sincerely, <br />Ai <br />Paul Zacher, SE - President <br />8137 Sunset Avenue, Suite 120 • Fait Ooks, CA 95628 • 916.961.3960 • 916.961.3965 f • WWW.Plf[.COM <br />J